Determine the average resistance force exerted
A 74 kg diver steps off a 14 m tower and drops from rest straight down into the water. If he comes to rest 4.4 m beneath the surface, determine the average resistance force exerted on him by the water.
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3 Zn(s) + 2 Bi3+(aq) → 3 Zn2+(aq) + 2 Bi(s) What is the standard reaction free energy? Faraday's constant is 96485 C/mol. Answer in units of kJ/mol
A person pulls on a 50 kg desk with a 200N force acting at a 30 degree angle above the horizontal. The desk does not budge. Draw a force diagram for the desk.
What is the rms speed of nitrogen molecules contained in an 7.6 m^3 volume at 2.2 atm if the total amount of nitrogen is 1200 mol?
For the reaction Ag2S(s) > 2Ag+ (aq) + S2- (aq) what happens to the equilibrium position if ammonium sulfide is doubled ?
A certain reaction has the following general form.Determine the value of the rate constant for this reaction. Calculate the half-life for this reaction.
A golfer can hit a golf ball a horizontal distance of over 300 m on a good drive. What maximum height will a 301.5 m drive reach if it is launched at an angle of 25.0 degrees to the ground?
A sample of a bright blue mineral was weighed in air, then weighed again while suspended in water. An object is buoyed up by the mass of the fluid displaced by the object. In air, the mineral weighed 7.41 g; in water, it weighed 2.31 g. The densit
A tank of water sits at the edge of a table of height 2.2 m. The tank springs a very small leak at its base, and water sprays out a distance of 2.0 m from the edge of the table. What is the water level h in the tank?
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